Mindat Logo
Home Page Log In Message Board The Mindat Directory
Register Search Pages Mineral Chatroom The Mindat Store

Chladniite

This page is currently not sponsored. Click here to sponsor this page.



Formula:
{Ca}{Na
 
8
}{Ca
 
4
Na
 
4
}{(Mg,Fe
2+
 
)
 
43
}(PO
 
4
)
 
36
System:TrigonalColour:Colorless
Hardness:4½ - 5
Member of:Fillowite Group
Name:
Named in honour of Ernst Florens Friedrich Chladni (1756-1827), University of Riga, Latvia, "father" of meteoritics.


Originally found as a single grain (975 x 175 micrometers) with chlorapatite, olivine, pyroxene, plagioclase, schreibersite, and troilite.

Classification of Chladniite

IMA status:Approved 1993
Strunz 8th edition ID:7/A.08-05
Nickel-Strunz 10th (pending) edition ID:8.AC.50

8 : PHOSPHATES, ARSENATES, VANADATES
A : Phosphates, etc. without additional anions, without H2O
C : With medium-sized and large cations
Dana 7th edition ID:38.2.9.3
Dana 8th edition ID:38.2.5.3

38 : ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
2 : (AB)5(XO4)3
mindat.org URL:http://www.mindat.org/min-1008.html
Please feel free to link to this page.

Type Occurrence of Chladniite

Type Locality:Carlton meteorite, Carlton, Hamilton Co., Texas, USA
Place of Conservation of Type Material:Smithsonian Institute
Year of Discovery:1994
Geological Setting of type material:In type IIICD iron meteorite and primitive achondrite meteorite.

Occurrences of Chladniite

Geological Setting:Iron and primitive achondrite meteorites

Physical Properties of Chladniite

Lustre:Sub-Vitreous, Resinous
Diaphaneity (Transparency):Transparent
Colour:Colorless
Streak:White
Hardness (Mohs):4½ - 5
Tenacity:Brittle
Cleavage:Imperfect/Fair
Rhombohedral
Fracture:Irregular/Uneven
Density (calculated):3.017(2) g/cm3

Crystallography of Chladniite

Crystal System:Trigonal
Class (H-M):3 - Rhombohedral
Space Group:R3
Space Group Setting:R3
Cell Parameters:a = 14.967(2) Å, c = 42.595(4) Å
Ratio:a:c = 1 : 2.846
Unit Cell Volume:V 8,263.40 ų (Calculated from Unit Cell)
Z:18
Morphology:Rims around other phosphates and silicates
X-Ray Powder Diffraction:
d-spacingIntensity
3.69 (strong)
3.56 (medium)
3.08 (weak)
2.96 (strong)
2.50 (medium)
2.75 (strong)
2.13 (medium)
1.851 (medium)
Comments:American Mineralogist 79:375 (1994)

Optical Data of Chladniite

Type:Uniaxial (+)
RI values: nω = 1.600 nε = 1.620
Birefringence:0.02
Maximum Birefringence:δ = 0.020

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate
Type:Anisotropic
Anisotropism:weak
Colour in reflected light:Gray
Internal Reflections:orange-brown
Pleochroism:Non-pleochroic
Comments:Weakly anisotropic

Chemical Properties of Chladniite

Formula:
{Ca}{Na
 
8
}{Ca
 
4
Na
 
4
}{(Mg,Fe
2+
 
)
 
43
}(PO
 
4
)
 
36
Essential elements:Ca, Mg, Na, O, P
All elements listed in formula:Ca, Fe, Mg, Na, O, P
Common Impurities:Fe,Mn,Si

Relationship of Chladniite to other Species

Member of:Fillowite Group
Other Members of Group:

- +
Fillowite
{Mn
2+
 
}{Na
 
8
}{Ca
 
4
Na
 
4
}{(Mn
2+
 
,Fe
2+
 
)
 
43
}(PO
 
4
)
 
36
Galileiite
{Fe
2+
 
}{Na
 
8
}{Fe
2+
4
Na
 
4
}{Fe
2+
43
}(PO
 
4
)
 
36
Johnsomervilleite
{Ca}{Na
 
6
[ ]
 
2
}{Ca
 
6
Na
 
2
}{(Fe
2+
 
,Mg,Mn
2+
 
)
 
43
}(PO
 
4
)
 
36
Stornesite-(Y)
{(Y, Ca)}{Na
 
6
◻
 
2
}{(Ca,Na)
 
8
}{(Mg,Fe
2+
 
)
 
43
}(PO
 
4
)
 
36
Xenophyllite
Na
 
4
Fe
2+
7
(PO
 
4
)
 
6
Common Associates:
OlivineKamaciteGraftoniteChlorapatiteAlbite-Anorthite Series
Related Minerals - Nickel-Strunz Grouping):

- +
8.AC.05Howardevansite
NaCuFe
 
2
(VO
 
4
)
 
3
8.AC.10Alluaudite
(Na,Ca)Mn
2+
 
(Fe
3+
 
,Mn
2+
 
,Fe
2+
 
,Mg)
 
2
(PO
 
4
)
 
3
8.AC.10Arseniopleite
NaCaMn
2+
 
(Mn
2+
 
,Mg)
 
2
(AsO
 
4
)
 
3
8.AC.10Caryinite
(Na,Pb)(Ca,Na)(Ca,Mn
2+
 
)(Mn
2+
 
,Mg,Fe
3+
 
)
 
2
(AsO
 
4
)
 
3
8.AC.10Ferroalluaudite
(Na,Ca)Fe
2+
 
(Fe
3+
 
,Mn
2+
 
,Fe
2+
 
)
 
2
(PO
 
4
)
 
3
8.AC.10Hagendorfite
NaCaMn
2+
 
Fe
2+
2
(PO
 
4
)
 
3
8.AC.10Johillerite
Na(Mg,Zn)
 
3
Cu(AsO
 
4
)
 
3
8.AC.10Maghagendorfite
NaMn(Mg,Fe,Fe)
 
3
(PO
 
4
)
 
3
8.AC.10Nickenichite
Na
 
0.8
Ca
 
0.4
Cu
 
0.4
(Mg,Fe)
 
3
(AsO
 
4
)
 
3
8.AC.10Varulite
NaCaMn
2+
 
Mn
2+
2
(PO
 
4
)
 
3
8.AC.10Ferrohagendorfite
NaCaFe
2+
 
Fe
2+
2
(PO
 
4
)
 
3
8.AC.10Bradaczekite
NaCu
 
4
(AsO
 
4
)
 
3
8.AC.10Yazganite
NaFe
3+
2
(Mg,Mn
2+
 
)(AsO
 
4
)
 
3
 · H
 
2
O
8.AC.10Groatite
NaCaMn
 
2
(PO
 
4
)(HPO
 
4
)
 
2
8.AC.15Bobfergusonite
Na
 
2
Mn
 
5
FeAl(PO
 
4
)
 
6
8.AC.15Ferrowyllieite
(Na,Ca,Mn)(Fe,Mn)(Fe,Fe,Mg)Al(PO
 
4
)
 
3
8.AC.15Qingheiite
NaMn
3+
 
Mg(Al,Fe
3+
 
)(PO
 
4
)
 
3
8.AC.15Rosemaryite
(Na,Ca,Mn)(Mn,Fe
2+
 
)(Fe
3+
 
,Mg)Al(PO
 
4
)
 
3
8.AC.15Wyllieite
(Na,Ca,Mn)(Mn,Fe)(Fe,Mg)Al(PO
 
4
)
 
3
8.AC.15Ferrorosemaryite
◻NaFe
2+
 
Fe
3+
 
Al(PO
 
4
)
 
3
8.AC.15Qingheiite-(Fe2+)
Na
 
2
Fe
2+
 
MgAl(PO
 
4
)
 
3
8.AC.18Manitobaite
Na
 
16
Mn
2+
 
 
25
Al
 
8
(PO
 
4
)
 
30
8.AC.20Marićite
NaFe
2+
 
(PO
 
4
)
8.AC.25Berzeliite
NaCa
 
2
(Mg,Mn
2+
 
)
 
2
(AsO
 
4
)
 
3
8.AC.25Manganberzeliite
(Ca,Na)
 
3
(Mn
2+
 
,Mg)
 
2
(AsO
 
4
)
 
3
8.AC.25Palenzonaite
(Ca,Na)
 
3
CaMn
2+
2
(VO
 
4
)
 
3
8.AC.25Schäferite
Ca
 
2
NaMg
 
2
(VO
 
4
)
 
3
8.AC.30Brianite
Na
 
2
CaMg(PO
 
4
)
 
2
8.AC.35Vitusite-(Ce)
Na
 
3
(Ce,La,Nd)(PO
 
4
)
 
2
8.AC.40Olgite
(Sr,Ba)(Na,Sr,REE)
 
2
Na(PO
 
4
)
 
2
8.AC.40Bario-olgite
(Ba,Sr)(Na,Sr,REE)
 
2
Na(PO
 
4
)
 
2
 ·
8.AC.45Strontiowhitlockite
Sr
 
9
Mg(PO
 
4
)
 
6
(HPO
 
4
)
8.AC.45Whitlockite
Ca
 
9
Mg(PO
 
4
)
 
6
(HPO
 
4
)
8.AC.45Merrillite
Ca
 
9
NaMg(PO
 
4
)
 
7
8.AC.45Tuite
Ca
 
3
(PO
 
4
)
 
2
8.AC.45Ferromerrillite
Ca
 
9
NaFe
2+
 
(PO
 
4
)
 
7
8.AC.45Bobdownsite
Ca
 
9
Mg(PO
 
4
)
 
6
(PO
 
3
F)
8.AC.50Fillowite
{Mn
2+
 
}{Na
 
8
}{Ca
 
4
Na
 
4
}{(Mn
2+
 
,Fe
2+
 
)
 
43
}(PO
 
4
)
 
36
8.AC.50Johnsomervilleite
{Ca}{Na
 
6
[ ]
 
2
}{Ca
 
6
Na
 
2
}{(Fe
2+
 
,Mg,Mn
2+
 
)
 
43
}(PO
 
4
)
 
36
8.AC.50Galileiite
{Fe
2+
 
}{Na
 
8
}{Fe
2+
4
Na
 
4
}{Fe
2+
43
}(PO
 
4
)
 
36
8.AC.50Stornesite-(Y)
{(Y, Ca)}{Na
 
6
◻
 
2
}{(Ca,Na)
 
8
}{(Mg,Fe
2+
 
)
 
43
}(PO
 
4
)
 
36
8.AC.50Xenophyllite
Na
 
4
Fe
2+
7
(PO
 
4
)
 
6
8.AC.55Harrisonite
Ca(Fe
2+
 
,Mg)
 
6
(PO
 
4
)
 
2
(SiO
 
4
)
 
2
8.AC.60Kosnarite
KZr
 
2
(PO
 
4
)
 
3
8.AC.65Panethite
(Na,Ca)
 
2
(Mg,Fe
2+
 
)
 
2
(PO
 
4
)
 
2
8.AC.70Stanfieldite
Ca
 
7
Ca
 
2
Mg
 
9
(PO
 
4
)
 
12
8.AC.75Ronneburgite
K
 
2
MnV
 
4
O
 
12
8.AC.80Tillmannsite
(Ag
 
3
Hg)(VO
 
4
,AsO
 
4
)
8.AC.85Filatovite
K(Al,Zn)
 
2
(As,Si)
 
2
O
 
8
Related Minerals - Dana Grouping):

- +
38.2.9.1Fillowite
{Mn
2+
 
}{Na
 
8
}{Ca
 
4
Na
 
4
}{(Mn
2+
 
,Fe
2+
 
)
 
43
}(PO
 
4
)
 
36
38.2.9.2Johnsomervilleite
{Ca}{Na
 
6
[ ]
 
2
}{Ca
 
6
Na
 
2
}{(Fe
2+
 
,Mg,Mn
2+
 
)
 
43
}(PO
 
4
)
 
36
38.2.9.4Galileiite
{Fe
2+
 
}{Na
 
8
}{Fe
2+
4
Na
 
4
}{Fe
2+
43
}(PO
 
4
)
 
36
38.2.9.5Stornesite-(Y)
{(Y, Ca)}{Na
 
6
◻
 
2
}{(Ca,Na)
 
8
}{(Mg,Fe
2+
 
)
 
43
}(PO
 
4
)
 
36
38.2.9.6Xenophyllite
Na
 
4
Fe
2+
7
(PO
 
4
)
 
6

Other Names for Chladniite

Synonyms:
IMA1993-010
Other Languages:
German:Chladniit
Spanish:Chladniita

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Chladniite

Reference List:

- +
American Mineralogist (1994): 79: 375-380.

Floss, C., 1999, Fe, Mg, Mn-bearing phosphates in the GRA 95209 meteorite: occurrences and mineral chemistry, American Mineralogist, v. 84, p. 1354-1359.

Internet Links for Chladniite

Search Engines:
  • Look for Chladniite on Google
  • Look for Chladniite images on Google
    • External Links:
  • Look for Chladniite on Webmineral
  • Look for Chladniite on Athena Mineralogy
  • Look for Chladniite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Chladniite details from Handbook of Mineralogy (PDF)
    • Mineral Dealers:
  • High-end worldwide specimens & outstanding customer service
  • Search for Chladniite from all mineral dealers at minfind.com
  • SpiriferMinerals.com - high quality low prices
  • Search for minerals at Heliodor
  • Edwards Minerals - Fine Specimens
  • Mineral Classics - Worldwide Collector Quality Minerals and Gems
  • Buy from David K Joyce minerals
  • Buy RARE Minerals from Rocks of Africa
  • DAKOTA MATRIX offers Cabinet and Rare Species from Worldwide Localities.
  • Pricedownminerals.com - Reverse Auctions and Shop
  • By minerals from YourMineralCollection
  • Fine Minerals from Weinrich Minerals, Inc.
    • Jobs:
  • Mining & Geology Jobs

    • Localities for Chladniite

    Hide Locality List
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Antarctica
     
    • Eastern Antarctica
      • Transantarctic Mts
        • Wisconsin Range
    		AmMin 84:1354-1359
    American Mineralogist, Volume 84, pages 1354–1359, 1999
    USA
     
    • Texas
      • Hamilton Co.
        • Carlton
    		American Mineralogist, Volume 79, pages 375-380, 1994
    Mineral and/or Locality
    Search Google
     
    Copyright © Jolyon Ralph and Ida Chau 1993-2011. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 18th Jun 2011 23:27:00
    Mineral and Locality Search
    Mineral:
    and/or Locality:
    Options
    Fade toolbar when not in focusFix toolbar to bottom of page
    Hide Social Media Links
    Slideshow frame delay seconds